140 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National University of UzbekistanUZ38 papers
- Tashkent Institute of Irrigation and Agricultural Mechanization EngineersUZ33 papers
- Ulugh Beg Astronomical InstituteUZ16 papers
- Urgench State UniversityUZ16 papers
- New Uzbekistan UniversityUZ15 papers
- Inha University in TashkentUZ13 papers
- Westminster International University in TashkentUZ13 papers
- Central Asian UniversityUZ11 papers
- Khazar UniversityAZ11 papers
- Samarkand State University named after Sharof RashidovUZ11 papers
- University of Hradec KrálovéCZ9 papers
- National University of Sciences and TechnologyPK8 papers
54 papers
Gravitational perturbations of a regular T-duality inspired black hole: Quasinormal modes, excitation factors, and time-domain evolution
Bekir Can Lütfüoğlu, Mardon Abdullaev, Javlon Rayimbaev +2
We study axial gravitational perturbations of the neutral regular black hole generated by a non-local, T-duality-inspired zero-point length and the associated gravitational self-en…
Grey-Body Factors and Thermodynamics of Asymptotically de Sitter Black Holes in Generalized Proca Theory
Bekir Can Lütfüoğlu, Javlon Rayimbaev, Nuriddin Kurbonov +2
Generalized Proca theory supplements gravity with a massive vector field whose derivative self-interactions can support black holes carrying primary vector hair. In the asymptotica…
A First-Order Eikonal Framework for Quasinormal Modes, Shadows, Strong Lensing, and Grey-Body Factors in a Scalarized Black-Hole Metric
Bekir Can Lütfüoğlu, Javlon Rayimbaev, Sardor Murodov +2
We construct an analytic geodesic-optics description of quasinormal ringing, black-hole shadows, strong lensing, and grey-body factors for the static spherical metric introduced in…
Spinning Particles around Einstein-Geometric Proca AdS Compact Objects
Gulzoda Rakhimova, Beyhan Puliçe, Elham Ghorani +2
We investigate the dynamics of spinning test particles in the vicinity of Einstein--geometric Proca (EGP) Anti-de Sitter (AdS) compact objects, which arise from metric-Palatini gra…
Ringing Regularity: Gravitational Perturbations and Quasinormal Modes of Einasto-Supported Black Holes
Bekir Can Lütfüoğlu, Javlon Rayimbaev, Sardor Murodov +2
We investigate axial gravitational perturbations and quasinormal modes of regular black holes supported by an Einasto distribution of matter. Halo matter not only removes the centr…
Constraining -Exponential Inflation with the latest ACT observations
Jureeporn Yuennan, Farruh Atamurotov, Salvatore Capozziello +1
Recent observations from the Atacama Cosmology Telescope (ACT), especially when combined with DESI baryon acoustic oscillation data, indicate a scalar spectral index higher t…
Horizon-Brightened Acceleration Radiation and Optical Signatures of Generic Regular Black Holes from Nonlinear Electrodynamics
Uktamjon Uktamov, Ali Övgün, Reggie C. Pantig +1
We investigate horizon-brightened acceleration radiation (HBAR) and optical signatures for a broad class of regular black holes sourced by nonlinear electrodynamics. The spacetimes…
Two types of quasinormal modes of Casadio-Fabbri-Mazzacurati brane-world black holes
Bekir Can Lütfüoğlu, Sardor Murodov, Mardon Abdullaev +3
Using the convergent Leaver method, we investigate the quasinormal modes of a massive scalar field propagating in the background of the Casadio--Fabbri--Mazzacurati (CFM) brane-wor…
Telling tails and quasi-resonances in the vicinity of Dymnikova regular black hole
Bekir Can Lütfüoğlu, Javlon Rayimbaev, Bekzod Rahmatov +2
We investigate quasinormal modes, late-time tails, and grey-body factors for massive scalar perturbations in the background of the Dymnikova regular black hole. By applying both th…
Gravitational Spectra and Wave Propagation in Regular Black Holes Supported by a Dehnen Halo
Bekir Can Lütfüoğlu, Abubakir Shermatov, Javlon Rayimbaev +2
We investigate gravitational perturbations, quasinormal modes, grey-body factors, and absorption cross-sections of the recently proposed regular and asymptotically flat black hole…
Constraining non-minimally coupled squared-Quartic Hilltop Inflation in light of ACT observations
Jureeporn Yuennan, Farruh Atamurotov, Phongpichit Channuie
The combination of the data from the Dark Energy Spectroscopic Instrument (DESI) with the recent measurements from the Atacama Cosmology Telescope (ACT) indicate that the scalar sp…
Nonlinear evolution of anisotropic matter configurations under higher-order curvature corrections
A. Zahra, S. A. Mardan, Muhammad Bilal Riaz +4
This study examines the dynamical evolution of self-gravitating systems in the presence of exotic matter within the framework of gravity. Specifically, we have adopted the S…
Gravitational wave radiation from periodic orbits and quasi-periodic oscillations in Einstein non-linear Maxwell-Yukawa black hole
Tehreem Zahra, Oreeda Shabbir, Bushra Majeed +3
In this article, we investigate the orbital dynamics and quasi-periodic oscillations (QPOs) surrounding a static, spherically symmetric geometry of an Einstein-nonlinear Maxwell-Yu…
Topological Signatures and Geometrothermodynamics of Critical Phenomena in Regularized Maxwell Black Holes
Y. Sekhmani, G. G. Luciano, S. K. Maurya +4
We study the thermodynamic topology and microscopic interaction properties of charged black holes in RegMax gravity, focusing on the role of the coupling parameter . Using the D…
Can a Dehnen-type dark matter halo affect the neutrino flavor oscillations?
Mirzabek Alloqulov, Ahmadjon Abdujabbarov, Bobomurat Ahmedov +1
The gravitational weak lensing of neutrinos in the presence of a Schwarzschild black hole surrounded by a Dehnen-type dark matter halo is investigated. The event horizon structure…
Proper-Time Approach in Asymptotic Safety via Black Hole Quasinormal Modes and Grey-body Factors
Bekir Can Lütfüoğlu, Erdinç Ulaş Saka, Abubakir Shermatov +3
We study the quasinormal mode spectrum and grey-body factors of black holes in an effectively quantum-corrected spacetime, focusing on the influence of near-horizon modifications o…
Thermodynamics of Einstein-Geometric Proca AdS compact objects
Asalkhon Alimova, Elham Ghorani, Beyhan Puliçe +2
In this study we explore metric-Palatini gravity extended by the antisymmetric component of the affine curvature. This gravitational theory results in general relativity plus a geo…
Gravitational quasinormal modes of Dymnikova black holes
Bekir Can Lütfüoğlu, Erdinç Ulaş Saka, Abubakir Shermatov +3
We investigate gravitational quasinormal modes of the Dymnikova black hole, a regular spacetime in which the central singularity is replaced by a de Sitter core. This geometry, ori…
Thermodynamic and observational implications of black holes in toroidal geometry
Usman Zafar, Kazuharu Bamba, Abdul Jawad +2
We investigate the thermodynamic and observational implications for the charged torus-like black holes, a class of solutions distinct from the classical Schwarzschild black holes.…
New analytical model of rotating black hole with dark matter halo: constraints from EHT observations and accretion disk
Uktamjon Uktamov, Sanjar Shaymatov, Bobomurat Ahmedov +1
In this paper, we start from a static black hole (BH) immersed in a Deanne-type dark matter (DM) halo and employ the Newman-Janis algorithm (NJA) to generate the rotating black hol…
Lensing Stability and Scattering Phenomena in Anisotropic Black Hole Spacetimes in Plasma
Jonibek Khasanov, Mirzabek Alloqulov, Pankaj Sheoran +2
We investigate the physical and observational features of static, spherically symmetric black hole spacetimes surrounded by anisotropic fluid and embedded in a plasma environment.…
Probing single-field inflation: predictions, constraints, and theoretical viewpoints
Fereshteh Felegary, Thammarong Eadkhong, Farruh Atamurotov +1
This work investigates a single-field inflationary model, a specific class of the K-essence models where a coupling term exists between canonical Lagrangian and the potential. This…
Cosmological implications and causality in gravity theory with observational constraints
Dinesh Chandra Maurya, Javlon Rayimbaev, Inomjon Ibragimov +1
In the generalized matter-geometry coupling theory, we investigate the physical characteristics and causality of some new cosmological models for a flat, homogeneous, and isotropic…
Particle Dynamics and Quasi-Periodic Oscillations in the GUP-Modified Schwarzschild Spacetime: Constraint Using Micro-Quasars Data
Husanboy Hoshimov, Odil Yunusov, Farruh Atamurotov +2
In this work, we have worked out dynamical aspects for the particles moving around the GUP-corrected-Schwarzschild (S-GUP) black hole. We have calculated the innermost stable circu…